CVE-2026-2099

MEDIUMNVD 5.45.4—Trending — 3 sources updated this week

5.4

AgentFlow developed by Flowring has a Stored Cross-Site Scripting vulnerability, allowing authenticated remote attackers to inject persistent JavaScript codes that are executed in users' browsers upon page load.

CVSS v3: 5.4
EG Score: 5.4(medium)
EPSS: 17.0%
KEV: Not listed

Published

February 10, 2026

Last Modified

February 13, 2026

References (2)

twcert@certhttps://www.twcert.org.tw/en/cp-139-10700-3534d-2.html
twcert@certhttps://www.twcert.org.tw/tw/cp-132-10699-49c0b-1.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 14:16 UTCEG score recompute
2026-05-29 14:16 UTCGHSA enrichment
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch

Frequently asked(5)

What is CVE-2026-2099?

CVE-2026-2099 is a medium vulnerability published on February 10, 2026. AgentFlow developed by Flowring has a Stored Cross-Site Scripting vulnerability, allowing authenticated remote attackers to inject persistent JavaScript codes that are executed in users' browsers upon page load.

When was CVE-2026-2099 disclosed?

CVE-2026-2099 was first published in the National Vulnerability Database on February 10, 2026, with the most recent update on February 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-2099 actively exploited?

CVE-2026-2099 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-2099?

CVE-2026-2099 has a CVSS v3 base score of 5.4 (NVD).

How do I remediate CVE-2026-2099?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-2099, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-2099

Explore →

Is Your Infrastructure Affected by CVE-2026-2099?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2026-2099

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-2099?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)